This monologue podcast episode of "Catechism in a Year" focuses on explaining the Holy Trinity, a core tenet of the Christian faith. Fr. Mike Schmitz begins by introducing the day's reading from the Catechism of the Catholic Church (paragraphs 232-237), then clarifies the theological terms "theologia" (study of God's inner life) and "oikonomia" (God's actions revealing Himself). He emphasizes that understanding God's actions ("oikonomia") illuminates His inner being ("theologia"), and vice versa, using the analogy of understanding a person better through their actions. The episode concludes with a reflection on the mystery of the Trinity and its revelation, highlighting that even though God's inner being remains a mystery, His self-revelation through creation and redemption allows us to know Him better. The episode encourages listeners to appreciate the revelation of God's love and not take it for granted.